Bichsel Boxes (6B40.20)

Description:

Two 3x5 index card boxes each with a small hole in the lid; one is painted black inside and the other white. Hold the boxes up to the students with the holes facing them and they appear almost identical. Open the lids and the difference is obvious. Useful in discussing blackbody cavity radiation.

Procedure or Operation Notes:

Hold the two boxes up for class viewing or try the document camera.

References, Comments, or Footnotes:

We think these are named after Professor Hans Bichsel from here at the UW.